D2_spectrum

Calculate values by means of a nth degree polynomial from
user-supplied constants (for example from a lamp calibration certificate).

Definitions of classes, methods, operators and functions for use
in photobiology and radiation meteorology and climatology. Calculation of
effective (weighted) and not-weighted irradiances/doses, fluence rates,
transmittance, reflectance, absorptance, absorbance and diverse ratios and
other derived quantities from spectral data. Local maxima and minima: peaks,
valleys and spikes. Conversion between energy-and photon-based units.
Wavelength interpolation. Astronomical calculations related solar angles and
day length. Colours and vision. This package is part of the 'r4photobiology'
suite, Aphalo, P. J. (2015) <doi:10.19232/uv4pb.2015.1.14>.

Pedro Aphalo

photobiology

Photobiological Calculations

Pedro J. Aphalo

Titta K. Kotilainen

Glenn Davis

Agnese Fazio

D2_spectrum function

<dl><dt>w.length</dt>
<dd>numeric vector of wavelengths (nm) for output</dd>
<dt>k</dt>
<dd>a polynom:polynomial object with n constants for the polynomial</dd>
<dt>fill</dt>
<dd>if NA, no extrapolation is done, and NA is returned for
wavelengths outside the range 190 nm to 450 nm. If NULL then the tails are
deleted. If 0 then the tails are set to zero, etc. NA is default.</dd></dl>

Arguments

Calculate deuterium lamp output spectrum from fitted constants — D2_spectrum

<dl>

<dt>w.length</dt>
<dd>numeric vector of wavelengths (nm) for output</dd>


<dt>k</dt>
<dd>a polynom:polynomial object with n constants for the polynomial</dd>


<dt>fill</dt>
<dd>if NA, no extrapolation is done, and NA is returned for
wavelengths outside the range 190 nm to 450 nm. If NULL then the tails are
deleted. If 0 then the tails are set to zero, etc. NA is default.</dd>

</dl>

D2_spectrum: Calculate deuterium lamp output spectrum from fitted constants

Description

Usage

Value

Arguments

Examples